• If posting about a radio issue: Include the HOST, DSP and UCM/secure firmware versions, flashcode and CPS version you're using along with the operating system info. This is critical information.

TRBO PA repair

Status
P

PRC148

Not Registered
It might sound dumb but would fingernail polish fill that appropriately? Or, maybe some epoxy from a fiberglass repair kit with some copper tape as the combiner trace.
 
OP
radio313

radio313

Prolific Contributor
Joined
Feb 13, 2012
Messages
194
Update:
Its not as sharp as i wanted, and the left side is missing some ground trace. But it might be good enough if i tune down to a few watts?

I wonder if it would be better to remove the existing caps and remove the entire RF trace. That way it would be one solid piece of copper.

gh1x7dx.png
 

Astro Spectra

T¹ ÆS Ø - Moderator, CS Forums $upporter
Staff member
CS Forums $upporter
Joined
Nov 22, 2012
Messages
1,062
Leave as much as possible.

The lowest impedance and most critical part of the output matching is the part closet to the FET. The burned out bit you've replaced will be less critical. However, you will need good caps for any sort of power. Try and get ones from American Technical Ceramics but in any case high current low esr RF caps.
 
Status